aircraft!

It was a circular aircraft that wasn't too big, and it looked very weird.

The craft are nearly impossible to spot, hidden among the interstellar junk near the dust lanes.

In fact, with the observation level of human civilization, it is difficult to observe carefully in space.

Humans haven't even explored and understood the blue star they live in, let alone the vast and boundless universe?

If there is an alien civilization secretly monitoring the blue star, it is impossible for humans to observe it.

Even if the level of science and technology of this alien civilization is not very high, as long as it can break away from the shackles of the stars, it is impossible to observe it with the level of human civilization.

Su Yan didn't know whether the ring-shaped thing was a monitor or an aircraft.

But what is certain is...that is definitely not the civilization achievement of Blue Star humans.

That is to say, the technology of the Su Yan space carrier is far superior to that of human beings, so it can be detected.

When the aircraft saw the appearance of Su Yan Helicarrier 573, it quickly disappeared.

In the blink of an eye, it disappeared from Su Yan's screen.

The speed is almost frightening.

Word:

System, can you explain it?

Why are there even aliens?

I can fight zombies, even mutant monsters.

But... how do the aliens fight?

Su Yan is very clear that if alien civilizations really appear, the situation is beyond his control.

A civilization that can cross a star system or even a whole galaxy to come to the Blue Star, at worst, is several grades better than the Blue Star Civilization.

Although his own red police system has exploded a lot of soldiers, he has the capital to sweep everything in Blue Star.

But if you really meet an alien, you will definitely kneel down in minutes!

"System, don't pretend to be dead. Come out and explain!"

[Drip! Dear Commander, according to the system detection, the object you observed just now is a type of spacecraft, and it is a probe of other civilizations in the interstellar civilization. 】

Su Yan: "...

Really a detector?

Wait... Alien Civilization?

"System, can you probably tell what kind of civilization it is? How much stronger is it compared to the Blue Star civilization?"

Su Yan asked with some uncertainty.

After all, Su Yan knew almost nothing about other civilizations in the sea of ​​stars, and he didn't know whether the system had the ability to analyze what kind of civilization it was.

[Drip! Dear Commander, according to the analysis of the system, the escape velocity of the aircraft just now is about 1% of the speed of light. According to the analysis [the civilization level of this civilization is about 1. Level cosmic civilization. 】

"Huh? Level 1.3 cosmic civilization?"

Su Yan frowned slightly. A 1.3-level cosmic civilization may sound like a stretch, but it is actually very powerful.

You know, the blue star civilization (bgdg) has just reached level 0.75 cosmic civilization.

The so-called cosmic civilization level is a conjecture deduced by human beings through the theory of cosmic resource utilization.

Divide the civilization of the universe into 7 levels.

The first-level cosmic civilization is also called a "planetary civilization". This civilization has the ability to mine and utilize almost all energy and energy on the planet it is on. That is to say, this civilization is the absolute "master" of the planet and can Control the weather, land, and various natural phenomena on the planet, know the structural changes and rise and fall of the planet's surface and underground, and even have the ability to destroy surrounding planets.

Obviously, today's Blue Star is far from reaching this level of civilization.

The second-level cosmic civilization is also called "stellar civilization", which has achieved the ability to leave the planet at will to develop and utilize the energy of the stars near the planet where it is located. The entire star system is under control, and you can live, shuttle, and develop energy on all the planets in the star system as you like, and you can build a Dyson sphere to make full use of the energy of the stars.

And behind the cosmic civilization that Su Yan just encountered is a 1.3-level cosmic civilization, which is in between. Although there is only a difference of 0.55 between Blue Star's 0.75 and 1.3, this is an insurmountable gap!

You know, the Blue Star Civilization had a back judgment of 0.72 in 1990, but it was only 0.75 in 2020.

Moreover, Blue Star is still in the stage of technological explosion. Even so, the level of civilization has only risen by a few tenths in the golden stage of development for decades.

It can be seen from this that this is a very scary value.

Su Yan can fully believe that if this alien civilization wants to destroy Blue Star, it will be a matter of minutes.

Su Yan was silent for a long time, as if thinking of something.

He opened his mouth slowly: "System, tell me...does this zombie virus have anything to do with this alien civilization?".

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